Mixing design for enzymatic hydrolysis of sugarcane bagasse: methodology for selection of impeller configuration

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorCorrêa, Luciano Jacob-
Autor(es): dc.creatorBadino, Alberto Colli-
Autor(es): dc.creatorCruz, Antonio José Gonçalves-
Data de aceite: dc.date.accessioned2026-02-09T11:36:45Z-
Data de disponibilização: dc.date.available2026-02-09T11:36:45Z-
Data de envio: dc.date.issued2018-11-23-
Data de envio: dc.date.issued2018-11-23-
Data de envio: dc.date.issued2016-02-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/31907-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007%2Fs00449-015-1512-6-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1143508-
Descrição: dc.descriptionOne of the major process bottlenecks for viable industrial production of second generation ethanol is related with technical–economic difficulties in the hydrolysis step. The development of a methodology to choose the best configuration of impellers towards improving mass transfer and hydrolysis yield together with a low power consumption is important to make the process cost-effective. In this work, four dual impeller configurations (DICs) were evaluated during hydrolysis of sugarcane bagasse (SCB) experiments in a stirred tank reactor (3 L). The systems tested were dual Rushton turbine impellers (DIC1), Rushton and elephant ear (down-pumping) turbines (DIC2), Rushton and elephant ear (up-pumping) turbines (DIC3), and down-pumping and up-pumping elephant ear turbines (DIC4). The experiments were conducted during 96 h, using 10 % (m/v) SCB, pH 4.8, 50 °C, 10 FPU/gbiomass, 470 rpm. The mixing time was successfully used as the characteristic parameter to select the best impeller configuration. Rheological parameters were determined using a rotational rheometer, and the power consumptions of the four DICs were on-line measured with a dynamometer. The values obtained for the energetic efficiency (the ratio between the cellulose to glucose conversion and the total energy) showed that the proposed methodology was successful in choosing a suitable configuration of impellers, wherein the DIC4 obtained approximately three times higher energetic efficiency than DIC1. Furthermore a scale-up protocol (factor scale-up 1000) for the enzymatic hydrolysis reactor was proposed.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceBioprocess and Biosystems Engineering-
Palavras-chave: dc.subjectBioethanol-
Palavras-chave: dc.subjectMixing time-
Palavras-chave: dc.subjectRheology-
Palavras-chave: dc.subjectPower consumption-
Palavras-chave: dc.subjectScale-up-
Palavras-chave: dc.subjectBioetanol-
Palavras-chave: dc.subjectTempo de mistura-
Palavras-chave: dc.subjectReologia-
Palavras-chave: dc.subjectConsumo de energia-
Palavras-chave: dc.subjectAumento de escala-
Título: dc.titleMixing design for enzymatic hydrolysis of sugarcane bagasse: methodology for selection of impeller configuration-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

Não existem arquivos associados a este item.